# \[Pitch #6\] Actors

**URL:** <https://forums.swift.org/t/pitch-6-actors/45519>\
**Category:** Pitches\
**Created:** [March 10, 2021, 6:43am UTC](https://forums.swift.org/t/pitch-6-actors/45519 "2021-03-10T06:43:45Z")\
**Posts on this page:** 1\
**Showing post:** 14

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**Author:** ![Douglas\_Gregor](https://sea2.discourse-cdn.com/swift/user_avatar/forums.swift.org/douglas_gregor/32/1362_2.png) [@Douglas\_Gregor](https://forums.swift.org/u/Douglas_Gregor)\
**Post date:** [March 10, 2021, 9:47pm UTC](https://forums.swift.org/t/pitch-6-actors/45519/14 "2021-03-10T21:47:45Z")

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> [@SwiftUI](#):
>
> After re-reading the latest proposal, it'd be better to merge/simplify `isolated/nonisolated` notion. They are basically the same `sync/@sync` semantic from different(inside/outside) perspective/view for **Actor**.
> 
> - From **outside** of Actor, `isolated Actor` means switching to actor's **executor** to access stuff in **sync way**.
> - From **inside** of Actor, `nonisolated Actor.member` means conform to non-isolated protocol requirements in traditional **sync way** or access stuff **in-sync** from anywhere.
> 
> So all in all, `outside isolated Actor == inside nonisolated Actor.member == sync / @sync` in semantic; there's no need to use two different antonym words to express the same thing.
> 
> They are just plain `sync` semantic meaning.

I made a similar argument in favor of `@concurrent` over `@sendable` over in the thread on SE-0302, and Joe Groff [made an excellent point](https://forums.swift.org/t/se-0302-second-review-sendable-and-sendable-closures/45253/35):

> On the other hand, I think it'd be good fight back against the urge to wordsmith and keep the names aligned. Other unnecessarily different wordings in the language for the same concept, like `mutating` / `inout` and `consuming` / `owned` for `self` vs. other arguments, or `class` -in-protocols-and-classes-but- `static` -everywhere-else for type-level methods, create barriers for learning the language.

We're not just talking about `isolated` here. We're talking about `isolated`, and `nonisolated`, and all of the terminology around actors isolating their state. We should either revisit it all or leave this one be; it's better than introducing more inconsistency for the sake of a slightly-better meaning for one (relatively obscure) feature.

Doug

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